International Asteroid Day marks the biggest asteroid crash to have ever occurred in recent history in 1908, when a near-Earth object measuring about 130 feet (40 meters) wide exploded above the Podkamennaya Tunguska River in Siberia and destroyed 800 square miles (2,072 square kilometers) of forest.

Its international asteroid day!On this day 1908, the Tunguska asteroid hit Russia wiping out an entire forest, 100yrs on still nothing grows pic.twitter.com/jRTlXqE86F